Digital Output Checks - Komatsu 830E Shop Manual

2.3 Digital Output Checks

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For each of the digital outputs listed in the following tables, perform the procedure as specified
in steps 1 and 2, and verify the results on the MANUAL DIGITAL OUTPUT TEST SCREEN as
noted in the following table. Be sure to restore any switch settings and wiring changes to their
original condition before moving on to check the next digital output.
1. Set digital output driver On.
a. Move cursor with the arrow keys to the output name (DO NAME) of the desired output.
b. Press [ENTER] key to change status of selected output from off to on.
c. The display status of the output name DO NAME on the MANUAL DIGITAL OUTPUT TEST
SCREEN changes from off (regular display) to = on (inverse display) in a flashing mode.
d. Output device will be energized, or take voltage reading to verify that output driver is turned
on, as noted in the OUTPUT DEVICE CHECKOUT column.
e. Status of related feedback input name DI NAME (if used) on the MANUAL DIGITAL OUT-
PUT TEST SCREEN changes from false (regular display) to = true (inverse display).
2. Set digital output driver Off.
a. With cursor still on the same output name DO NAME press [ENTER] key again to change
status of selected output from on to off.
b. The display status of the output name DO NAME on the MANUAL DIGITAL OUTPUT TEST
SCREEN changes from = on (inverse display) to off (regular display).
c. Output device will be de-energized, or take voltage reading to verify that output driver is
turned off as noted in the OUTPUT DEVICE CHECKOUT column.
d. Status of related feedback input name DI NAME (if used) on the MANUAL DIGITAL OUT-
PUT TEST SCREEN changes from = true (inverse display) to false (regular display).
e. Be sure to restore any metering or wiring changes to their original condition before moving
on to check the next output.
3. After all digital outputs have been checked, move cursor to (select) "EXIT" on the menu and
press [ENTER] key.
4. Repeat step 3. as required until returned to GE STATEX III PTU MENU.
E03012 2/02 Statex III Electrical Checkout Procedure E3-21